I agree with the captioning and functioanlity of controls and am a stickler for consistancy of layout (we all hate hunting around the screen with the mouse trying to find a control) however, I am not sure that clicking an inhabited cell to edit an existing record and clicking a blank cell to edit a new record would constitute a conflicting action.

On the other hand, I am also a little rampant about having to switch from the keyboard to the mouse during data entry so maybe there is more to the navigation of this than just the mouse click issue.

I will definately hit the bookstore before heading home.